find the difference between two date values in Sybase database

Question

I have understand that there are some functions days() in sybase iq, but in sybase ase, I think we have only date part option to get the number of days between two days.

My requirement is that i want number days between two days without comparing month or year between two days.

Any help appreciated!

Answer 1

Use datediff function:

Description

Calculates the number of date parts between two specified dates or times.

Syntax

datediff(datepart, {date, date | time, time | bigtime, bigtime | datetime, datetime | bigdatetime, bigdatetime}]) Parameters

datepart is a date part or abbreviation. For a list of the date parts and abbreviations recognized by Adaptive Server, see Transact-SQL Users Guide.

date expression1 is an expression of type datetime, smalldatetime, bigdatetime, bigtime, date, time, or a character string in a datetime format.

date expression2 is an expression of type datetime, smalldatetime, bigdatetime, bigtime, date, time, or a character string in a datetime format.

Example 6

Finds the number of days between two times:

declare @a time
declare @b time
select @a = "20:43:22"
select @b = "10:43:22"
select datediff(dd, @a, @b)
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